helper function

Author: alexkazik

src/dom/element.rs

@@ -77,6 +77,11 @@ pub enum WalkResult {
 }
 
 impl<'a> Element<'a> {
+    #[inline]
+    pub fn has_class(&self, class: &str) -> bool {
+        self.classes.contains_key(class)
+    }
+
     #[inline]
     pub fn for_each_element<F>(&mut self, mut f: F)
     where

src/dom/html.rs

@@ -46,6 +46,12 @@ impl<'a> PartialEq<str> for &Attribute<'a> {
     }
 }
 
+impl Borrow<str> for Attribute<'_> {
+    fn borrow(&self) -> &str {
+        self.as_str()
+    }
+}
+
 #[derive(Default, Serialize, PartialEq, Eq, IntoOwned, ToBorrowed, ToOwned)]
 #[serde(transparent)]
 pub struct Text<'a>(pub Cow<'a, str>);